Narrative:

Ground control told us to taxi north on east; hold short of E11. I made a note of it; but the captain and I misread the airport diagram. The intersections are not in numerical order; so instead of E9; E10; E11; they are E11; E9; E10. Still; that's no excuse; and by the time we recognized the mistake; we had taxied past E11. Captain immediately stopped the aircraft and notified ground control. He also apologized to them. They were very understanding and told us to continue taxiing on east to runway 18C. We both misread the taxi diagram. Also; was fairly congested and we missed the E11 sign. Also; as stated earlier; intersections are not in numerical order; and we incorrectly assumed that they were. (E11 came before E9 and E10). Also; I momentarily had to go heads down as I finished inputting weight and balance in the FMS. Was a fairly high workload situation at the end of a 4 leg; 12 hour day. In the future; we both need to be much more vigilant in reading airport diagrams; slow down; and realize that we prone to mistakes at the end of a long day and a 4 day trip.

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Original NASA ASRS Text

Title: A B737 flight crew suffered an taxiway incursion in CLT when they failed to hold short of taxiway E-11 as cleared.

Narrative: Ground Control told us to taxi north on E; hold short of E11. I made a note of it; but the Captain and I misread the airport diagram. The intersections are not in numerical order; so instead of E9; E10; E11; they are E11; E9; E10. Still; that's no excuse; and by the time we recognized the mistake; we had taxied past E11. Captain immediately stopped the aircraft and notified Ground Control. He also apologized to them. They were very understanding and told us to continue taxiing on E to Runway 18C. We both misread the taxi diagram. Also; was fairly congested and we missed the E11 sign. Also; as stated earlier; intersections are not in numerical order; and we incorrectly assumed that they were. (E11 came before E9 and E10). Also; I momentarily had to go heads down as I finished inputting weight and balance in the FMS. Was a fairly high workload situation at the end of a 4 leg; 12 hour day. In the future; we both need to be much more vigilant in reading airport diagrams; slow down; and realize that we prone to mistakes at the end of a long day and a 4 day trip.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.